TDS

Henry Company®, 999 N. Pacific Coast Highway, Ste. 800, El Segundo, CA 90245
Tel: 800‐486‐1278 Email: [e-mail]
www.henry.com
Rev. Date: 05/03/2022
Henry® 887 Tropi‐Cool® 100% Silicone White Roof Coating
Features
• Dirt Pick‐Up Resistance (DPR) technology formula – Stays
whiter and brighter longer
• 100% waterproof
• Rain‐safe in 15‐minutes
• 1‐coat application
• Saves energy by reflecting heat
• Wide application temperature range from 35
°
F to 120
°
F
(2 °C to 49 °C)
• Permanent ponding water resistant
• Superior UV resistance and weathering performance
• VOC compliant – solvent‐free
• Mold and mildew resistant
• Chemically bonds with roof substrates as it cures
• Easy to apply by spray, roller, or brush
• Lifetime limited warranty
• Excellent adhesion and flexibility
Usage
Coating can be used on many different commercial or residential roof substrates to reflect the sun's heat and UV rays, as well as to help seal
and protect the surface. It works well on low slope roofs and is suitable for pitched roofs. Acceptable roof types include:
• Aged asphalt roofs – including Built‐Up Roofing (BUR) and Modified Bitumen (MB)
• Aged single‐ply and rubber roofs, including TPO, EPDM, PVC, and Hypalon® roofs
• Aged fiberglass roofs
• Spray Polyurethane Foam (SPF) roofs
• Metal roofs
• Concrete roofs
• Recoating previously coated roofs
• RV, trailer, and mobile home roofs
Not recommended over shingles of any kind.
Application
CLEAN: Before coating the roof, use a pressure washer or high pressure nozzle and water hose to wash the roof with a non‐filming detergent,
such as TSP or TSP substitute. Use appropriate pressure and take caution not to inject water into the roof substrate during washing. In areas
with stubborn dirt, grease, or other contaminants, use a stiff bristle brush or broom to scrub the areas clean with additional water and non‐
filming detergent. Treat algae or moss. The most effective method of cleaning algae and moss from a roof is with a 50:50 mix of laundry strength
liquid chlorine bleach and water. Apply with a sprayer and allow the solution to dwell on the roof surface for 15 to 20 minutes, and then rinse
thoroughly with low pressure water. Extended dwell times may be necessary, however, avoid letting the solution dry completely as this may
prevent complete rinsing. Take proper precautions to protect landscaping and surrounding areas from the chlorine bleach solution. Use
appropriate personal protective
equipment when working with chlorine bleach. In severe cases, it may take more than one bleach treatment to
kill all of the moss. Give the roof a final rinse to ensure it is free of all detergent or anything else that could affect adhesion. Allow roof to dry
completely before application. Using a leaf blower or broom, clear any remaining dust, dirt, debris, and foreign material that may prevent proper
adhesion. Apply a test area of coating over the existing membrane to verify absence of bleed‐through and proper adhesion to membrane prior
to start of application.
PREP: Repair defects, such as splits, cracks, blisters, deteriorated flashing, cracked metal edging, and any other defects affecting the water
tightness of the roof. As a preventative measure, seal all roof penetrations, curbs, flashings, transition areas, areas where dissimilar materials
intersect, and other areas that could leak with Henry® 884 Tropi‐Cool® 100% Silicone Roof Sealant or Henry® 885 Tropi‐Cool® 100% Silicone
Seam & Repair Roof Sealant. Ensure all roof drains and gutters are clean and clear, and cut back any vegetation that is growing above the roof
which may cause debris to fall on the roof and clog drains and gutters in the future. On metal roofs, remove rust by wire brushing.
MIXING: Coating may settle during storage. Mix well prior to and during use with a drill and mixing paddle. For 1 and 5 gallon pails, use a
minimum 3" diameter mixing paddle or hand mix with a suitable paddle until consistent viscosity is achieved. In drums, use a minimum 6"
diameter mixing paddle.
RV, Trailer, and Mobile Home Roofs: Check the manufacturer’s recommendations for walking on the roof. Park on a level surface. Ensure vehicle
is turned off with the parking brake set. Secure keys to ensure someone else does not move the vehicle while you are on the roof.